莫须有

Explanation: May have intended it. Fabricated out of thin air after that. 　　Usage: Contraction type; as predicate, complement, attributive; refers to fabricate false charges 　　Source: "Song Shi Yuefei Biography": "flying sub-cloud and Xian Zhang book, although unknown, being to the body unwarranted." 　　Riddle: Red would not touch without oblique